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【Coating for Gravestone】
・Sample: Gray 1piece、Black 1piece
・Photocatalyst: PALCCOAT CLEAR-P (undercoat) + CLEAR-G (topcoat)
After half covered, the surface is cleaned and degreased with alcohol.
Normally, an undercoat is not required for inorganic materials such as stone, but we applied CLEAR-P (undercoat) in order to improve the adhesion of the photocatalytic topcoat. Apply 3 layers while drying.
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After drying, photocatalytic topcoat CLEAR-G (topcoat) is applied. This time, we adopted it the most transparent solution, it's normally for glass coating. This is also applied in three layers while drying.
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Dry. The film is further hardened under sunlight (ultraviolet rays) to make it more robust.
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As expected, when divided in half, the white dullness stands out on the dark color base material.
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On the whitish color base material, it is not very noticeable, although it depends on the seeing angle.
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[Checking hydrophilicity 1st time]
Spray water on the surface to check the hydrophilicity.
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Let the first wash air dry once in the sunlight.
[Checking hydrophilicity 2nd time]
Dry in sunlight once, then spray with water again to check the hydrophilicity.